An automatic adjustment system and method for a hydrogen generator

Abstract

The present invention discloses an automatic adjustment system and method for a hydrogen generator, the automatic adjustment system comprising a raw material box, a raw material delivery pipeline, a liquid adding pump, a reforming chamber, a pressure relief safety valve, a purification system, a first discharge pipeline, a first discharge valve, an oxygen delivery module, a vacuum module, and a hydrogen production control circuit; the first discharge pipeline outputs the produced hydrogen, and can also deliver part of the produced hydrogen to the reforming chamber when needed, and provide heat for the reforming chamber through combustion; the reforming chamber is provided with a pressure relief safety valve, and when the environmental conditions in the reforming chamber meet the set requirements, the pressure is released by controlling the pressure relief safety valve to open. The automatic adjustment system and method for a hydrogen generator proposed in the present invention can realize intelligent control of the hydrogen generator without manual intervention, thereby improving the efficiency of hydrogen production. The present invention can monitor the hydrogen production status of the hydrogen generator and send control instructions to the hydrogen generator. The traditional technology currently available on the market requires manual coordination and adjustment, while the present invention realizes fully automated operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen production equipment, and relates to a hydrogen generator, in particular to an automatic adjustment system for a hydrogen generator; at the same time, the present invention also relates to an automatic adjustment method for a hydrogen generator. Background Art

[0002] Environmental pollution and energy crisis are becoming increasingly severe, and developing new energy has become an effective way to solve this problem. Hydrogen energy is highly efficient and environmentally friendly, and is recognized as an ideal future energy source, attracting more and more researchers to engage in the research and development of hydrogen energy. Electrochemistry and thermochemistry are two ways of hydrogen utilization. Electrochemistry releases energy at room temperature, and the product is water, with almost no pollution to the environment.

[0003] Currently, the main hydrogen production technologies include fossil fuel reforming for hydrogen production, water electrolysis for hydrogen production, solar hydrogen production, biomass hydrogen production, etc. Among the numerous raw materials available for fuel reforming, low-carbon alcohol fuels such as methanol are widely sourced, can be produced from biomass, are inexpensive, have mild preparation process conditions, and low carbonization pollution, making them an ideal raw material choice for mobile hydrogen sources.

[0004] Currently, there are mainly three ways of methanol reforming for hydrogen production: autothermal reforming, partial oxidation reforming, and steam reforming. Methanol steam autothermal reforming is that a mixture of methanol water and demineralized water is heated and vaporized and then enters the reforming reactor, where methanol cracking and carbon monoxide steam reforming reactions occur under certain temperature, pressure, and catalyst conditions, with the characteristics of low reaction temperature, high H 2 content at the outlet, and low CO content. The reaction principle is as follows:

[0005] Methanol decomposition: CH 3 OH → CO + 2H 2

[0006] Steam reforming: H 2 O + CO → CO 2 + H 2

[0007] The reaction temperature of methanol reforming for hydrogen production is 220 - 250 °C, and it is an endothermic reaction. Autothermal reforming requires the combustion of purified tail gas to provide heat, so a stable combustion heat must be provided.

[0008] Existing hydrogen generators usually require manual intervention for control, and the hydrogen production efficiency of hydrogen generators is relatively low; when problems occur in the hydrogen generator, they may not be detected in time.

[0009] In view of this, there is an urgent need to design a new hydrogen generator structure today to overcome the above-mentioned defects existing in the existing hydrogen generator structure. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide an automatic adjustment system for a hydrogen generator, which can realize the intelligent control of the hydrogen generator, without manual intervention, and improve the hydrogen production efficiency.

[0011] In addition, the present invention also provides an automatic adjustment method for a hydrogen generator, which can realize the intelligent control of the hydrogen generator, without manual intervention, and improve the hydrogen production efficiency.

[0012] To solve the above technical problems, the present invention adopts the following technical solutions:

[0013] An automatic adjustment system for a hydrogen generator, the automatic adjustment system includes: a raw material tank, a raw material delivery pipeline, a liquid addition pump, a reforming chamber, a pressure relief safety valve, a purification system, a heat recovery pipeline, a heat recovery valve, a first discharge pipeline, a first discharge valve, a second discharge pipeline, a second discharge valve, an oxygen supply module, a vacuum pumping module, a hydrogen production control circuit, a monitoring terminal;

[0014] The raw material tank is connected to the reforming chamber through the raw material delivery pipeline, and the raw material delivery pipeline is provided with a liquid addition pump to provide the power for raw material delivery; the raw material delivery pipeline is provided with a hydraulic sensor, the liquid addition pump pumps the methanol aqueous solution, and the hydraulic sensor sends the sensed hydraulic data to the single-chip microcomputer of the hydrogen production control circuit.

[0015] The raw material delivery pipeline is provided with a heat recovery pipeline inside, and the heat recovery pipeline is provided with a heat recovery valve;

[0016] The reforming chamber is provided with an igniter, at least one temperature sensor, at least one pressure sensor; the reforming chamber is connected to the purification system, the heat recovery pipeline is connected to the reforming chamber and the purification system, the purification system is connected to the first discharge pipeline, and the first discharge pipeline is provided with a first discharge valve, and the hydrogen discharge is controlled by the first discharge valve according to the set conditions;

[0017] The hydrogen-rich gas produced by the reforming chamber is purified by the purification system. The purification system is provided with a first discharge pipeline and a heat recovery pipeline. The purification system outputs the separated hydrogen through the first discharge pipeline, and the high-temperature residual gas other than the separated hydrogen is used to exchange heat for the raw material in the raw material delivery pipeline through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber;

[0018] The heat recovery pipeline is connected to the second discharge pipeline, and the second discharge pipeline is provided with a second discharge valve, and the residual gas can be discharged through the second discharge valve;

[0019] The first discharge pipeline outputs the produced hydrogen, and at the same time can transport part of the produced hydrogen to the reforming chamber when needed, and supply heat to the reforming chamber through combustion;

[0020] The reforming chamber is provided with a pressure relief safety valve, and when the environmental conditions in the reforming chamber meet the set requirements, the pressure relief safety valve is controlled to open for pressure relief;

[0021] The methanol aqueous solution becomes methanol steam after being preheated by the high-temperature tail gas. After entering the reforming chamber, a chemical reaction occurs to generate hydrogen-rich gas, and at the same time, the system pressure increases. The maximum designed operating pressure of the reforming chamber is P1. When the liquid addition pump operates abnormally, more methanol steam will enter the reforming chamber, resulting in an increase in the system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment. When the hydraulic pressure sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to avoid system overpressure. The program automatically switches the system to the shutdown state and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the fault on-site. P1 is 15 bar;

[0022] Autothermal reforming requires the combustion of purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas normally closed valve, i.e., the second discharge valve, opens, and according to the difference between the reforming temperature and T1, the exhaust time is automatically controlled to achieve intermittent exhaust, avoid large fluctuations in the pressure of the reforming chamber, and at the same time reduce the temperature of the reforming chamber and extend the service life of the system. T1 is 310 °C;

[0023] The purification system includes a palladium-silver alloy membrane tube. The vacuum pumping module is connected to the palladium-silver alloy membrane tube to pump vacuum for the palladium-silver alloy membrane tube during the initial start-up of hydrogen production. At least one temperature sensor and at least one pressure sensor are provided inside the palladium-silver alloy membrane tube;

[0024] Each temperature sensor and each pressure sensor monitor the temperatures of the palladium-silver alloy membrane tube and each part of the reforming chamber and transmit the data to the single-chip microcomputer of the hydrogen production control circuit;

[0025] The oxygen supply module includes a PWM fan, an oxygen-containing gas delivery pipeline, and an oxygen-containing gas delivery valve. The PWM fan and the oxygen-containing gas delivery valve are arranged in the oxygen-containing gas delivery pipeline. The PWM fan controls the flow rate and velocity of the oxygen-containing gas according to the environmental conditions in the reforming chamber and the demand for hydrogen production;

[0026] The hydrogen production control circuit is respectively connected to the liquid addition pump, the igniter, each temperature sensor, each pressure sensor, the pressure relief safety valve, the purification system, the heat regeneration valve, the first discharge valve, the second discharge valve, the oxygen supply module, the vacuum pumping module, and the monitoring terminal, obtains the information of each temperature sensor and each pressure sensor, controls the actions of the liquid addition pump, the igniter, the pressure relief safety valve, the purification system, the heat regeneration valve, the first discharge valve, the second discharge valve, the oxygen supply module, and the vacuum pumping module, and sends the set information to the monitoring terminal;

[0027] The single-chip microcomputer of the hydrogen production control circuit collects the feedback signals of various sensors and equipment, and finally the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the monitoring terminal through the 485 / CAN bus, and the monitoring terminal then remotely sends it to the upper computer. The upper computer can remotely monitor the hydrogen production machine and monitor the operating status of the hydrogen production machine.

[0028] A hydrogen production machine automatic regulation system, the automatic regulation system includes: a raw material tank, a raw material delivery pipeline, a liquid addition pump, a reforming chamber, a pressure relief safety valve, a purification system, a first discharge pipeline, a first discharge valve, an oxygen supply module, a vacuum pumping module, and a hydrogen production control circuit;

[0029] The raw material tank is connected to the reforming chamber through the raw material delivery pipeline. The raw material delivery pipeline is provided with a liquid addition pump to provide the power for raw material delivery. The raw material delivery pipeline is provided with a hydraulic sensor. The liquid addition pump extracts the methanol aqueous solution, and the hydraulic sensor sends the sensed hydraulic data to the single-chip microcomputer of the hydrogen production control circuit.

[0030] The reforming chamber is provided with an igniter, at least one temperature sensor, and at least one pressure sensor. The reforming chamber is connected to the purification system. The heat recovery pipeline is connected to the reforming chamber and the purification system. The purification system is connected to the first discharge pipeline. The first discharge pipeline is provided with a first discharge valve. The hydrogen discharge is controlled by the first discharge valve according to the set conditions.

[0031] The hydrogen-rich gas produced in the reforming chamber is purified by the purification system. The purification system is provided with a first discharge pipeline and a heat recovery pipeline. The purification system outputs the separated hydrogen through the first discharge pipeline, and the high-temperature residual gas other than the separated hydrogen is used to exchange heat for the raw material in the raw material delivery pipeline through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber.

[0032] The first discharge pipeline outputs the produced hydrogen, and at the same time can transport part of the produced hydrogen to the reforming chamber when needed to supply heat to the reforming chamber through combustion.

[0033] The reforming chamber is provided with a pressure relief safety valve, and when the environmental conditions in the reforming chamber meet the set requirements, the pressure relief safety valve is controlled to open for pressure relief.

[0034] The purification system includes a membrane tube. The vacuum pumping module is connected to the membrane tube to evacuate the membrane tube during the initial start-up of hydrogen production. At least one temperature sensor and at least one pressure sensor are provided in the membrane tube.

[0035] Each temperature sensor and each pressure sensor monitor the temperatures of each part of the membrane tube and the reforming chamber, and transmit the data to the single-chip microcomputer of the hydrogen production control circuit.

[0036] The hydrogen production control circuit is respectively connected to the liquid addition pump, the igniter, each temperature sensor, each pressure sensor, the pressure relief safety valve, the purification system, the first discharge valve, the oxygen supply module, and the vacuum pumping module, obtains the information of each temperature sensor and each pressure sensor, and controls the actions of the liquid addition pump, the igniter, the pressure relief safety valve, the purification system, the first discharge valve, the oxygen supply module, and the vacuum pumping module.

[0037] As a preferred embodiment of the present invention, the automatic adjustment system further includes a monitoring terminal. The hydrogen production control circuit is connected to the hydrogen production control circuit and sends the set information to the monitoring terminal.

[0038] As a preferred embodiment of the present invention, the single-chip microcomputer of the hydrogen production control circuit collects the feedback signals of various sensors and devices, and finally the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the monitoring terminal through the 485 / CAN bus, and the monitoring terminal then remotely sends it to the upper computer; the upper computer can remotely monitor the hydrogen production machine and monitor the operating status of the hydrogen production machine.

[0039] As a preferred embodiment of the present invention, the automatic adjustment system further includes a heat recovery pipeline and a heat recovery valve; the heat recovery pipeline is arranged in the raw material transportation pipeline, and a heat recovery valve is arranged in the heat recovery pipeline;

[0040] The purification system outputs the separated hydrogen through the first discharge pipeline, and exchanges heat for the raw materials in the raw material transportation pipeline with the high-temperature residual gas other than the separated hydrogen through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber.

[0041] As a preferred embodiment of the present invention, the automatic adjustment system further includes a second discharge pipeline and a second discharge valve;

[0042] The heat recovery pipeline is connected to the second discharge pipeline, and the second discharge pipeline is provided with a second discharge valve, and the residual gas can be discharged through the second discharge valve.

[0043] As a preferred embodiment of the present invention, the membrane tube is a palladium-silver alloy membrane tube.

[0044] As a preferred embodiment of the present invention, the oxygen supply module includes a fan, an oxygen-containing gas transportation pipeline, and an oxygen-containing gas transportation valve. The fan and the oxygen-containing gas transportation valve are arranged in the oxygen-containing gas transportation pipeline; the fan controls the flow rate and flow velocity of the oxygen-containing gas according to the environmental conditions in the reforming chamber and the demand for hydrogen production.

[0045] As a preferred embodiment of the present invention, the methanol aqueous solution becomes methanol steam after being preheated by the high-temperature tail gas, enters the reforming chamber and undergoes a chemical reaction to generate hydrogen-rich gas. At the same time, the system pressure increases; the maximum design working pressure of the reforming chamber is P1. When the liquid addition pump works abnormally, more methanol steam enters the reforming chamber, resulting in an increase in the system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment; when the hydraulic sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to avoid system overpressure. The program automatically switches the system to the shutdown state and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the fault on site; P1 is 15 bar;

[0046] Autothermal reforming requires the combustion of purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas normally closed valve, i.e., the second discharge valve, opens, and the exhaust time is automatically controlled according to the difference between the reforming temperature and T1 to achieve intermittent exhaust, avoid large fluctuations in the pressure of the reforming chamber, and at the same time reduce the temperature of the reforming chamber and extend the service life of the system; T1 is 310 °C.

[0047] An automatic adjustment method for the above hydrogen production machine automatic adjustment system, the method comprising the following steps:

[0048] Step S1: Power-on self-check. If a problem is encountered, enter the alarm state. If it passes, standby and wait for an instruction to start;

[0049] Step S2: The program starts the vacuum pumping module to pump vacuum for the membrane tube;

[0050] Step S3: The automatic liquid addition system works, the liquid addition pump extracts the methanol aqueous solution from the raw material tank, and the hydraulic sensor sends the data to the single-chip microcomputer;

[0051] Step S4: The igniter works and the flame consumes oxygen; the fan determines the supply of oxygen;

[0052] Step S5: The temperature monitoring module monitors the temperatures of various parts of the membrane tube and the reforming chamber and sends the data to the single-chip microcomputer;

[0053] Step S6: Coordination operation step; when the hydrogen production machine is in the running state, all parts need to work together in coordination,

[0054] Step S7: The purification system purifies hydrogen to obtain 99.99% pure hydrogen;

[0055] Step S8: Hydrogen discharge step; control the discharge of hydrogen according to the set exhaust valve;

[0056] Step S9: Data feedback step; the information collected by the feedback signals of various sensors or devices is sent to the single-chip microcomputer.

[0057] As a preferred solution of the present invention, in step S9, the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the control terminal CT through 485 / CAN, and the control terminal CT then remotely sends it to the upper computer;

[0058] The automatic adjustment method further includes step S10: Remote monitoring step; the remote upper computer can monitor the hydrogen production machine and monitor the running states of all hydrogen production machines in the system.

[0059] The beneficial effects of the present invention are as follows: The hydrogen generator automatic regulation system and method proposed by the present invention can achieve intelligent control of the hydrogen generator without manual intervention, improving the hydrogen production efficiency. The present invention can monitor the hydrogen production status of the hydrogen generator and send control commands to the hydrogen generator. The traditional technologies on the market currently require manual adjustment, while the present invention realizes fully automated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic structural diagram of the hydrogen generator automatic regulation system of the present invention.

[0061] Figure 2 It is a schematic diagram of the composition of the hydrogen production control circuit of the present invention.

[0062] Figure 3 It is a hydrogen production logic flow chart of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0063] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0064] Embodiment 1

[0065] Please refer to Figure 1 , the present invention discloses a hydrogen generator automatic regulation system, and the automatic regulation system includes: a raw material tank 1, a raw material delivery pipeline, a liquid addition pump 8, a reforming chamber 2, a pressure relief safety valve 3, a purification system 4, a heat recovery pipeline, a heat recovery valve 6, a first discharge pipeline, a first discharge valve 5, a second discharge pipeline, a second discharge valve 7, an oxygen supply module 9, a vacuum pumping module 10, a hydrogen production control circuit 11, and a monitoring terminal 12.

[0066] The raw material tank 1 is connected to the reforming chamber 2 through the raw material delivery pipeline, and the raw material delivery pipeline is provided with a liquid addition pump 8 to provide the power for raw material delivery; the raw material delivery pipeline is provided with a hydraulic sensor, the liquid addition pump pumps methanol aqueous solution, and the hydraulic sensor sends the sensed hydraulic data to the single-chip microcomputer of the hydrogen production control circuit 11.

[0067] The raw material delivery pipeline is provided with a heat recovery pipeline inside, and the heat recovery pipeline is provided with a heat recovery valve 6.

[0068] The reforming chamber 2 is provided with an igniter 22, at least one temperature sensor 21, and at least one pressure sensor; the reforming chamber 2 is connected to the purification system 4, the heat recovery pipeline is connected to the reforming chamber 2 and the purification system 4, the purification system 4 is connected to the first discharge pipeline, the first discharge pipeline is provided with a first discharge valve 5, and the hydrogen discharge is controlled by the first discharge valve 5 according to the set conditions.

[0069] The hydrogen-rich gas produced in the reforming chamber 2 is purified by a purification system 4. The purification system 4 is provided with a first discharge pipeline and a heat recovery pipeline. The purification system 4 outputs the separated hydrogen through the first discharge pipeline, and the high-temperature residual gas other than the separated hydrogen is used to exchange heat for the raw material in the raw material delivery pipeline (vaporize the methanol aqueous solution) through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber 2 for combustion to supply heat to the reforming chamber 2.

[0070] The heat recovery pipeline is connected to a second discharge pipeline. The second discharge pipeline is provided with a second discharge valve 7, and the residual gas can be discharged through the second discharge valve 7.

[0071] The first discharge pipeline outputs the produced hydrogen, and at the same time, part of the produced hydrogen can be transported to the reforming chamber 2 when needed to supply heat to the reforming chamber by combustion.

[0072] The reforming chamber 2 is provided with a pressure relief safety valve 3. When the environmental conditions in the reforming chamber 2 meet the set requirements, the pressure relief safety valve 3 is controlled to open for pressure relief.

[0073] The methanol aqueous solution becomes methanol steam after being preheated by the high-temperature tail gas. After entering the reforming chamber, a chemical reaction occurs to generate hydrogen-rich gas, and at the same time, the system pressure increases. The designed maximum operating pressure of the reforming chamber is P1. When the liquid addition pump works abnormally, more methanol steam enters the reforming chamber, resulting in an increase in the system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment. When the hydraulic sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to avoid system overpressure. The program automatically switches the system to the shutdown state and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the fault on site. For example, P1 can be 15 bar, and of course, it can also be set to other values, such as 14.5 bar, 14 bar, etc.

[0074] Autothermal reforming requires the combustion of the purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas long-closed valve, that is, the second discharge valve, opens, and the exhaust time is automatically controlled according to the difference between the reforming temperature and T1 to achieve intermittent exhaust, avoid large fluctuations in the pressure of the reforming chamber, and at the same time reduce the temperature of the reforming chamber and extend the service life of the system. For example, T1 can be 310 °C, and of course, it can also be set to other values, such as 312 °C, 305 °C, etc.

[0075] The purification system 4 includes a palladium-silver alloy membrane tube. The vacuum pumping module 10 is connected to the palladium-silver alloy membrane tube to evacuate the palladium-silver alloy membrane tube during the initial start-up of hydrogen production. At least one temperature sensor and at least one pressure sensor are provided inside the palladium-silver alloy membrane tube.

[0076] Each temperature sensor and each pressure sensor monitor the temperatures of each part of the palladium-silver alloy membrane tube and the reforming chamber and transmit the data to the single-chip microcomputer of the hydrogen production control circuit.

[0077] The oxygen supply module 9 includes a PWM fan, an oxygen-containing gas delivery pipeline, and an oxygen-containing gas delivery valve. The PWM fan and the oxygen-containing gas delivery valve are arranged in the oxygen-containing gas delivery pipeline; the PWM fan controls the flow rate and velocity of the oxygen-containing gas according to the environmental conditions in the reforming chamber and the demand for hydrogen production.

[0078] The hydrogen production control circuit 11 is respectively connected to the liquid addition pump 8, the igniter 22, each temperature sensor, each pressure sensor, the pressure relief safety valve 3, the purification system 4, the heat regeneration valve 6, the first discharge valve 5, the second discharge valve 7, the oxygen supply module 9, the vacuum pumping module 10, and the monitoring terminal 12, obtains the information of each temperature sensor and each pressure sensor, controls the actions of the liquid addition pump 8, the igniter 22, the pressure relief safety valve 3, the purification system 4, the heat regeneration valve 6, the first discharge valve 5, the second discharge valve 7, the oxygen supply module 9, and the vacuum pumping module 10, and sends the set information to the monitoring terminal 12.

[0079] The single-chip microcomputer of the hydrogen production control circuit 11 collects the feedback signals of various sensors and devices, and finally the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the monitoring terminal through the 485 / CAN bus, and the monitoring terminal then remotely sends it to the upper computer; the upper computer can remotely monitor the hydrogen production machine and monitor the operating state of the hydrogen production machine.

[0080] As Figure 2 shown, the hydrogen production control circuit includes: a micro control unit (single-chip microcomputer), several sensor interfaces, a PWM fan interface, a key interface, a power input interface, a power conversion circuit, several solenoid valve interfaces, a liquid pumping pump interface, a digital display interface, and an external communication interface.

[0081] The micro control unit is respectively connected to each sensor interface, the PWM fan interface, the key interface, the power conversion circuit, each solenoid valve interface, the liquid pumping pump interface, the digital display interface, and the external communication interface; the power conversion circuit is connected to the power input interface.

[0082] The micro control unit is connected to the corresponding sensor through each sensor interface, the micro control unit is connected to the PWM fan through the PWM fan interface, the micro control unit is connected to the corresponding key through the key interface, the power conversion circuit is connected to the power supply through the power input interface, the micro control unit is connected to the liquid pumping pump through the liquid pumping pump interface, the micro control unit is connected to the digital display device through the digital display interface, and the micro control unit is connected to the external communication module through the external communication interface.

[0083] Several sensor interfaces include a liquid level sensor interface, a hydraulic pressure sensor interface, a negative pressure sensor interface, a membrane tube intake air temperature sensor interface, a membrane tube top temperature sensor interface, a reforming chamber top temperature sensor interface, a reforming chamber bottom temperature sensor interface, a humidity sensor interface, an air pressure sensor interface, a voltage sensor interface, and a current sensor interface.

[0084] Several solenoid valve interfaces include a first liquid inlet solenoid valve interface, a second liquid inlet solenoid valve interface, an igniter solenoid valve interface, an automatic pressure relief valve interface, a pure hydrogen outlet solenoid valve interface, a first vacuum pumping solenoid valve interface, a second vacuum pumping solenoid valve interface, a third vacuum pumping solenoid valve interface, an exhaust gas solenoid valve interface, an exhaust gas exhaust solenoid valve interface, and a vacuum pump solenoid valve interface.

[0085] The above describes the composition of the hydrogen generator automatic regulation system of the present invention. While disclosing the above system, the present invention also discloses an automatic regulation method for the above hydrogen generator automatic regulation system; please refer to Figure 3 , the method includes the following steps:

[0086]

Step S1

[0087]

Step S2

[0088]

Step S3

[0089]

Step S4

[0090]

Step S5

[0091]

Step S6

[0092]

Step S7

[0093]

Step S8

[0094] This step includes the step of adjusting the internal air pressure of the reforming chamber: The aqueous methanol solution becomes methanol vapor after being preheated by the high-temperature tail gas. After entering the reforming chamber, a chemical reaction occurs to generate hydrogen-rich gas, and at the same time, the system pressure increases. The maximum designed operating pressure of the reforming chamber is P1. When the liquid addition pump operates abnormally, more methanol vapor will enter the reforming chamber, resulting in an increase in the system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment. When the hydraulic sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to prevent the system from overpressurizing. The program automatically switches the system to the shutdown state and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the failure on-site. For example, P1 can be 15 bar, and of course, it can also be set to other values, such as 14.5 bar, 14 bar, etc.

[0095] Autothermal reforming requires the combustion of purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas normally closed valve, i.e., the second discharge valve, opens, and the exhaust time is automatically controlled according to the difference between the reforming temperature and T1 to achieve intermittent exhaust, avoid large fluctuations in the pressure of the reforming chamber, and at the same time reduce the temperature of the reforming chamber and extend the service life of the system. For example, T1 can be 310 °C, and of course, it can also be set to other values, such as 312 °C, 305 °C, etc.

[0096]

Step S9

[0097]

Step S10

[0098] In summary, the hydrogen generator automatic adjustment system and method proposed by the present invention can realize the intelligent control of the hydrogen generator without manual intervention and improve the hydrogen production efficiency. The present invention can monitor the hydrogen production status of the hydrogen generator and send control instructions to the hydrogen generator. The traditional technologies on the market currently require manual cooperation for adjustment, while the present invention realizes fully automated operation.

[0099] The description and application of the present invention here are illustrative and not intended to limit the scope of the present invention to the above embodiments. Variations and changes of the embodiments disclosed here are possible, and substitutions and equivalent various components of the embodiments are known to those of ordinary skill in the art. Those skilled in the art should clearly understand that the present invention can be implemented in other forms, structures, arrangements, proportions, and with other components, materials, and parts without departing from the spirit or essential characteristics of the present invention. Other variations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the present invention.

Claims

1. An automatic adjustment system for a hydrogen generator, characterized in that, the automatic adjustment system includes: a raw material tank, a raw material delivery pipeline, a liquid addition pump, a reforming chamber, a pressure relief safety valve, a purification system, a heat recovery pipeline, a heat recovery valve, a first discharge pipeline, a first discharge valve, a second discharge pipeline, a second discharge valve, an oxygen supply module, a vacuum pumping module, a hydrogen production control circuit, and a monitoring terminal; the raw material tank is connected to the reforming chamber through the raw material delivery pipeline, and the raw material delivery pipeline is provided with a liquid addition pump to provide the power for raw material delivery; the raw material delivery pipeline is provided with a hydraulic sensor, the liquid addition pump pumps methanol aqueous solution, and the hydraulic sensor sends the sensed hydraulic data to the single-chip microcomputer of the hydrogen production control circuit; the raw material delivery pipeline is internally provided with a heat recovery pipeline, and the heat recovery pipeline is internally provided with a heat recovery valve; the reforming chamber is provided with an igniter, at least one temperature sensor, and at least one pressure sensor; the reforming chamber is connected to the purification system, the heat recovery pipeline is connected to the reforming chamber and the purification system, the purification system is connected to the first discharge pipeline, and the first discharge pipeline is provided with a first discharge valve, and the hydrogen discharge is controlled by the first discharge valve according to the set conditions; the hydrogen-rich gas produced in the reforming chamber is purified by the purification system. The purification system is provided with a first discharge pipeline and a heat recovery pipeline. The purification system outputs the separated hydrogen through the first discharge pipeline, and the high-temperature residual gas other than the separated hydrogen is used to exchange heat for the raw material in the raw material delivery pipeline through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber; the heat recovery pipeline is connected to the second discharge pipeline, and the second discharge pipeline is provided with a second discharge valve, and the residual gas can be discharged through the second discharge valve; the first discharge pipeline outputs the produced hydrogen, and at the same time, part of the produced hydrogen can be transported to the reforming chamber when needed to supply heat to the reforming chamber through combustion; the reforming chamber is provided with a pressure relief safety valve, and when the environmental conditions in the reforming chamber meet the set requirements, the pressure relief safety valve is controlled to open for pressure relief; the methanol aqueous solution becomes methanol steam after being preheated by the high-temperature tail gas, and undergoes a chemical reaction after entering the reforming chamber to generate hydrogen-rich gas, and at the same time the system pressure increases; the designed maximum operating pressure of the reforming chamber is P1. When the liquid addition pump works abnormally, more methanol steam enters the reforming chamber, resulting in an increase in system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment; when the hydraulic sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to avoid system overpressure. The program automatically switches the system to the shutdown state and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the failure on site; P1 is 15 bar; autothermal reforming requires the combustion of the purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas normally closed valve, that is, the second discharge valve, opens, and according to the difference between the reforming temperature and T1, the exhaust time is automatically controlled to achieve intermittent exhaust, avoiding large fluctuations in the pressure of the reforming chamber, while reducing the temperature of the reforming chamber and extending the service life of the system; T1 is 310 °C; The purification system includes a palladium-silver alloy membrane tube. The vacuum pumping module is connected to the palladium-silver alloy membrane tube and evacuates the palladium-silver alloy membrane tube when starting hydrogen production initially. At least one temperature sensor and at least one pressure sensor are provided inside the palladium-silver alloy membrane tube. Each temperature sensor and each pressure sensor monitor the temperatures of various parts of the palladium-silver alloy membrane tube and the reforming chamber, and transmit the data to the single-chip microcomputer of the hydrogen production control circuit. The oxygen supply module includes a PWM fan, an oxygen-containing gas delivery pipeline, and an oxygen-containing gas delivery valve. The PWM fan and the oxygen-containing gas delivery valve are arranged in the oxygen-containing gas delivery pipeline. The PWM fan controls the flow rate and velocity of the oxygen-containing gas according to the environmental conditions in the reforming chamber and the demand for hydrogen production. The hydrogen production control circuit is respectively connected to the liquid addition pump, the igniter, each temperature sensor, each pressure sensor, the pressure relief safety valve, the purification system, the heat regeneration valve, the first discharge valve, the second discharge valve, the oxygen supply module, the vacuum pumping module, and the monitoring terminal, obtains the information of each temperature sensor and each pressure sensor, controls the actions of the liquid addition pump, the igniter, the pressure relief safety valve, the purification system, the heat regeneration valve, the first discharge valve, the second discharge valve, the oxygen supply module, and the vacuum pumping module, and sends the set information to the monitoring terminal. The single-chip microcomputer of the hydrogen production control circuit collects the feedback signals of various sensors and devices, and finally the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the monitoring terminal through the 485 / CAN bus, and the monitoring terminal then remotely sends it to the upper computer; the upper computer can remotely monitor the hydrogen production machine and monitor the operating status of the hydrogen production machine.

2. A hydrogen production machine automatic adjustment system Characterized in that The automatic adjustment system includes: a raw material tank, a raw material delivery pipeline, a liquid addition pump, a reforming chamber, a pressure relief safety valve, a purification system, a first discharge pipeline, a first discharge valve, an oxygen supply module, a vacuum pumping module, and a hydrogen production control circuit; The raw material tank is connected to the reforming chamber through the raw material delivery pipeline, and a liquid addition pump is provided in the raw material delivery pipeline to provide the power for raw material delivery. The reforming chamber is provided with an igniter, at least one temperature sensor, and at least one pressure sensor; the reforming chamber is connected to the purification system, and a heat regeneration pipeline is connected to the reforming chamber and the purification system. The purification system is connected to the first discharge pipeline, and the first discharge pipeline is provided with a first discharge valve. The hydrogen discharge is controlled by the first discharge valve according to the set conditions. The hydrogen-rich gas produced in the reforming chamber is purified by the purification system. The purification system is provided with a first discharge pipeline and a heat regeneration pipeline. The purification system outputs the separated hydrogen through the first discharge pipeline, and exchanges heat for the raw material in the raw material delivery pipeline with the high-temperature residual gas other than the separated hydrogen through the heat regeneration pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber. The first discharge pipeline outputs the produced hydrogen, and at the same time can transport part of the produced hydrogen to the reforming chamber when needed to supply heat to the reforming chamber through combustion. The reforming chamber is provided with a pressure relief safety valve, and when the environmental conditions in the reforming chamber meet the set requirements, the pressure relief safety valve is controlled to open for pressure relief. The purification system includes a membrane tube. The vacuum pumping module is connected to the membrane tube and evacuates the membrane tube when starting hydrogen production initially. At least one temperature sensor is provided inside the membrane tube. Each temperature sensor monitors the temperatures of various parts of the membrane tube and the reforming chamber, and transmits the data to the single-chip microcomputer of the hydrogen production control circuit; The hydrogen production control circuit is respectively connected to a liquid addition pump, an igniter, each temperature sensor, each pressure sensor, a pressure relief safety valve, a purification system, a first discharge valve, an oxygen supply module, and a vacuum pumping module, obtains the information of each temperature sensor and each pressure sensor, and controls the operations of the liquid addition pump, the igniter, the pressure relief safety valve, the purification system, the first discharge valve, the oxygen supply module, and the vacuum pumping module; The methanol aqueous solution becomes methanol vapor after being preheated by the high-temperature tail gas, enters the reforming chamber and undergoes a chemical reaction to generate hydrogen-rich gas, and at the same time the system pressure increases; the designed maximum operating pressure of the reforming chamber is P1. When the liquid addition pump operates abnormally, more methanol vapor enters the reforming chamber, resulting in an increase in the system pressure. If the pressure exceeds P1, it will affect the safe use of the equipment; when the hydraulic sensor in the reforming chamber detects that the pressure exceeds P1, the pressure relief safety valve automatically opens to avoid system overpressure. The program automatically switches the system to the shutdown state, and transmits the data back to the monitoring center through the remote monitoring system to notify the maintenance personnel to detect the cause of the failure on site; Autothermal reforming requires the combustion of the purified tail gas to provide heat. When the tail gas is excessive and the system exceeds the set maximum operating temperature T1, the tail gas normally closed valve, i.e., the second discharge valve, opens, and automatically controls the exhaust time according to the difference between the reforming temperature and T1, achieving intermittent exhaust, avoiding large fluctuations in the pressure of the reforming chamber, reducing the temperature of the reforming chamber at the same time, and extending the service life of the system; The oxygen supply module includes a fan, an oxygen-containing gas delivery pipeline, and an oxygen-containing gas delivery valve. The fan and the oxygen-containing gas delivery valve are arranged in the oxygen-containing gas delivery pipeline; the fan controls the flow rate and velocity of the oxygen-containing gas according to the environmental conditions in the reforming chamber and the demand for hydrogen production.

3. The hydrogen production machine automatic adjustment system according to claim 2, characterized in that: The automatic adjustment system further includes a monitoring terminal, and the hydrogen production control circuit is connected to the hydrogen production control circuit and sends the set information to the monitoring terminal.

4. The hydrogen production machine automatic adjustment system according to claim 3, characterized in that: The single-chip microcomputer of the hydrogen production control circuit collects the feedback signals of various sensors and devices, and finally the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the monitoring terminal through a 485 / CAN bus, and the monitoring terminal then remotely sends it to the upper computer; the upper computer can remotely monitor the hydrogen production machine and monitor the operating status of the hydrogen production machine.

5. The hydrogen production machine automatic adjustment system according to claim 2, characterized in that: The automatic adjustment system further includes a heat recovery pipeline and a heat recovery valve; the heat recovery pipeline is arranged in the raw material delivery pipeline, and a heat recovery valve is arranged in the heat recovery pipeline; The purification system outputs the separated hydrogen through a first discharge pipeline, and exchanges heat for the raw materials in the raw material delivery pipeline with the high-temperature residual gas other than the separated hydrogen through the heat recovery pipeline. The residual gas after heat exchange can be transported to the reforming chamber for combustion to supply heat to the reforming chamber.

6. The hydrogen production machine automatic adjustment system according to claim 5, characterized in that: The automatic adjustment system further includes a second discharge pipeline and a second discharge valve; The regenerative pipeline is connected to the second discharge pipeline, and the second discharge pipeline is provided with a second discharge valve, and the surplus gas can be discharged through the second discharge valve.

7. The hydrogen generator automatic regulation system according to claim 2, characterized in that: The membrane tube is a palladium-silver alloy membrane tube; the raw material delivery pipeline is provided with a hydraulic sensor, the liquid addition pump extracts the methanol aqueous solution, and the hydraulic sensor sends the sensed hydraulic data to the single-chip microcomputer of the hydrogen production control circuit.

8. The hydrogen generator automatic regulation system according to claim 2, characterized in that: P1 is 15 bar; T1 is 310 °C.

9. An automatic regulation method for the hydrogen generator automatic regulation system according to any one of claims 1 to 8, characterized in that the method comprises the following steps: Step S1: Power-on self-check, enter the alarm state if there is a problem, and standby waiting for an instruction to start if passed; Step S2: The program starts the vacuum pumping module to pump vacuum for the membrane tube; Step S3: The automatic liquid addition system works, the liquid addition pump extracts the methanol aqueous solution from the raw material tank, and the hydraulic sensor sends the data to the single-chip microcomputer; Step S4: The igniter works, and the flame consumes oxygen; the fan determines the supply of oxygen; Step S5: The temperature monitoring module monitors the temperatures of various parts of the membrane tube and the reforming chamber, and sends the data to the single-chip microcomputer; Step S6: Coordination operation step; when the hydrogen generator is in the running state, all parts need to work together in coordination, Step S7: The purification system purifies hydrogen to obtain 99.99% pure hydrogen; Step S8: Hydrogen discharge step; control the discharge of hydrogen according to the set exhaust valve; Step S9: Data feedback step; the information collected by the feedback signals of various sensors or devices is sent to the single-chip microcomputer.

10. The automatic regulation method according to claim 9, characterized in that: In step S9, the single-chip microcomputer feeds back to the upper computer through WIFI; or communicates with the control terminal CT through 485 / CAN, and the control terminal CT then remotely sends it to the upper computer; The automatic regulation method further includes step S10: Remote monitoring step; the remote upper computer can monitor the hydrogen generator and monitor the running states of all hydrogen generators in the system.

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